Jupiter's moon Ganymede, is larger than the planet Mercury!
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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The moon is actually moving away from Earth at a rate of 1.5 inches per year.
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Jupiter is bigger than all the other planets combined.
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Venus is the only planet that rotates clockwise.
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It takes eight and a half minutes for light to get from the sun to earth.
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